Its location is probably the best thing this hotel has to offer. There is a Universitat metro station just steps away from the hotel's main entrance. The weather was great when we visited in November and we practically walked to almost all the key sights from the hotel. It is about two to three blocks away from Plaça de Catalunya, which is like the center of Barcelona city. Plaça de Catalunya is also where the stop for the Aerobus is to bring tourists to and from the airport. From Plaça de Catalunya, one can easily walk toward La Rambla, Passeig de Gràcia and Rambla de Catalunya, all of which are main sightseeing streets in Barcelona.
There are many cafes nearby the hotel and we had our breakfast at one of these cafes every morning. A coffee and pastry cost about 5-6 euros, which I believe is cheaper than the hotel's. Given the convenience and selection offered at these cafes, I do not think it is necessary to eat breakfast at the hotel.
Inside the hotel, there is a very nice roof terrace on the eighth floor. The pool is very small and the bar was closed when we were there, probably due to the time of the year. From the roof terrace, you can get a good view of the surrounding area.
The hotel room is spacious and clean. We requested for a matrimonial bed and got two single beds pushed together to form a double bed. That aside, the sheets were clean and we really like the huge pillows at this hotel. The bathroom is also fairly large and clean, with a full size tub and toiletries. Some items that would have been nice to have but were missing in the room would be a kettle to make hot beverages, complimentary bottled water, a box of tissues and bedroom slippers.
Service at the hotel can be considered fairly efficient. Prior to our visit, we emailed the hotel a couple of enquiries and their staff always replied very promptly. Our check-in and check-out at the hotel was also handled with minimal fuss. One day before our check-out, we asked the hotel staff if we could print our boarding passes at their business center. The staff told us to simply email them the boarding passes and they would print for us for free. That was really helpful of them.
In summary, Hotel Jazz is very conveniently located with good basic room amenities. I will recommend this hotel to anyone visiting Barcelona.